Parcelable encountered IOException writing serializable object getactivity

Question

so I am getting this in logcat   java lang RuntimeException  Parcelable encountered IOException writing serializable object  name   com resources student list Student    I know this means that my student class is not serializable  but it is  here is my student class   import java io Serializable    public class Student implements Comparable lt Student gt    Serializable       private static final long serialVersionUID   1L      private String firstName  lastName      private DSLL lt Grade gt  gradeList        public Student             firstName               lastName               gradeList   new DSLL lt Grade gt                public String getFirstName             return firstName             public void setFirstName String firstName            this firstName   firstName             public String getLastName             return lastName             public void setLastName String lastName            this lastName   lastName             public DSLL lt Grade gt  getGradeList             return gradeList             public void setGradeList DSLL lt Grade gt  gradeList            this gradeList   gradeList             public int compareTo Student arg0            return this lastName compareTo arg0 getLastName                and this is the code that is using the getIntent   method   public void onItemClick AdapterView lt   gt  parent  View viewClicked  int pos                                  long id                                 Student clickedStudent   studentList get pos                               int position   pos                              Intent intent   new Intent getActivity   getApplicationContext    ShowStudentActivity class                               Log e  CINTENT   CREATED                                   intent putExtra  clickedStudent  clickedStudent                               intent putExtra  newStudentList  newStudentList                               intent putExtra  position  position                               Log e  putExtra   Passed                                Log e  Start activity   passed                                startActivity intent                                                          please help me figure out whats wrong with this   here is the whole LogCat   04-17 16 12 28 890  E AndroidRuntime 22815   FATAL EXCEPTION  main 04-17 16 12 28 890  E AndroidRuntime 22815   java lang RuntimeException  Parcelable encountered IOException writing serializable object  name   com resources student list Student  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Parcel writeSerializable Parcel java 1181  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Parcel writeValue Parcel java 1135  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Parcel writeMapInternal Parcel java 493  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Bundle writeToParcel Bundle java 1612  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Parcel writeBundle Parcel java 507  04-17 16 12 28 890  E AndroidRuntime 22815      at android content Intent writeToParcel Intent java 6111  04-17 16 12 28 890  E AndroidRuntime 22815      at android app ActivityManagerProxy startActivity ActivityManagerNative java 1613  04-17 16 12 28 890  E AndroidRuntime 22815      at android app Instrumentation execStartActivity Instrumentation java 1422  04-17 16 12 28 890  E AndroidRuntime 22815      at android app Activity startActivityForResult Activity java 3191  04-17 16 12 28 890  E AndroidRuntime 22815      at android support v4 app FragmentActivity startActivityFromFragment FragmentActivity java 848  04-17 16 12 28 890  E AndroidRuntime 22815      at android support v4 app Fragment startActivity Fragment java 878  04-17 16 12 28 890  E AndroidRuntime 22815      at com example student lists MainActivity DummySectionFragment 2 onItemClick MainActivity java 477  04-17 16 12 28 890  E AndroidRuntime 22815      at android widget AdapterView performItemClick AdapterView java 292  04-17 16 12 28 890  E AndroidRuntime 22815      at android widget AbsListView performItemClick AbsListView java 1058  04-17 16 12 28 890  E AndroidRuntime 22815      at android widget AbsListView PerformClick run AbsListView java 2514  04-17 16 12 28 890  E AndroidRuntime 22815      at android widget AbsListView 1 run AbsListView java 3168  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Handler handleCallback Handler java 605  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Handler dispatchMessage Handler java 92  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Looper loop Looper java 137  04-17 16 12 28 890  E AndroidRuntime 22815      at android app ActivityThread main ActivityThread java 4447  04-17 16 12 28 890  E AndroidRuntime 22815      at java lang reflect Method invokeNative Native Method  04-17 16 12 28 890  E AndroidRuntime 22815      at java lang reflect Method invoke Method java 511  04-17 16 12 28 890  E AndroidRuntime 22815      at com android internal os ZygoteInit MethodAndArgsCaller run ZygoteInit java 784  04-17 16 12 28 890  E AndroidRuntime 22815      at com android internal os ZygoteInit main ZygoteInit java 551  04-17 16 12 28 890  E AndroidRuntime 22815      at dalvik system NativeStart main Native Method  04-17 16 12 28 890  E AndroidRuntime 22815   Caused by  java io NotSerializableException  com resources student list DSLL DNode 04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeNewObject ObjectOutputStream java 1364  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObjectInternal ObjectOutputStream java 1671  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObject ObjectOutputStream java 1517  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObject ObjectOutputStream java 1481  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeFieldValues ObjectOutputStream java 979  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream defaultWriteObject ObjectOutputStream java 368  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeHierarchy ObjectOutputStream java 1074  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeNewObject ObjectOutputStream java 1404  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObjectInternal ObjectOutputStream java 1671  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObject ObjectOutputStream java 1517  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObject ObjectOutputStream java 1481  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeFieldValues ObjectOutputStream java 979  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream defaultWriteObject ObjectOutputStream java 368  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeHierarchy ObjectOutputStream java 1074  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeNewObject ObjectOutputStream java 1404  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObjectInternal ObjectOutputStream java 1671  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObject ObjectOutputStream java 1517  04-17 16 12 28 890  E AndroidRuntime 22815      at java io ObjectOutputStream writeObject ObjectOutputStream java 1481  04-17 16 12 28 890  E AndroidRuntime 22815      at android os Parcel writeSerializable Parcel java 1176

User · Answer

The problem occurs when your custom class has for property some other class e.g. "Bitmap". What I made is to change the property field from "private Bitmap photo" to "private transient Bitmap photo". However the image is empty after I getIntent() in the receiver activity. Because of this I passed the custom class to the intent and also I've created a byte array from the image and pass it separatly to the intent:

selectedItem is my custom object and getPlacePhoto is his method to get image. I've already set it before and now I just get it first than convert it and pass it separatly:

 Bitmap image = selectedItem.getPlacePhoto();
 image.compress(Bitmap.CompressFormat.PNG, 100, stream);
 byte[] byteArray = stream.toByteArray();
 Intent intent = new Intent(YourPresentActivity.this, 
 TheReceiverActivity.class);
 intent.putExtra("selectedItem", selectedItem);                 
 intent.putExtra("image", byteArray);
 startActivity(intent);

`

Then in the receiver activity I get my object and the image as byte array, decode the image and set it to my object as photo property.

 Intent intent = getIntent();
 selectedItem = (ListItem) intent.getSerializableExtra("selectedItem");
 byte[] byteArray = getIntent().getByteArrayExtra("image");
 Bitmap image = BitmapFactory.decodeByteArray(byteArray, 0, 
 byteArray.length);
 selectedItem.setPhoto(image);

User · Answer

Your OneThread Class also should implement Serializable  All the sub classes and inner sub classes must implements Serializable   this is worked for me

User · Answer

I faced Same issue  the issues was there are some inner classes with the static keyword After removing the static keyword it started working and also the inner class should implements to Serializable  Issue scenario  class A implements Serializable     class static B           Resolved By  class A implements Serializable         class B implements Serializable

User · Answer

I am also phase these error and i am little bit change in modelClass which are implemented Serializable interface like   At that Model class also implement Parcelable interface with writeToParcel   override method   Then just got error to  create creator  so CREATOR is write and also create with modelclass contructor with arguments  amp  without arguments            Override         public void writeToParcel Parcel dest  int flags                dest writeString id               dest writeString name                      protected ArtistTrackClass Parcel in                id   in readString                name   in readString                      public ArtistTrackClass                     public static final Creator lt ArtistTrackClass gt  CREATOR   new Creator lt ArtistTrackClass gt               Override         public ArtistTrackClass createFromParcel Parcel in                return new ArtistTrackClass in                       Override         public ArtistTrackClass   newArray int size                return new ArtistTrackClass size                      Here    ArtistTrackClass -  ModelClass  Constructor with Parcel arguments  read our attributes  and writeToParcel   is  write our attributes

User · Answer

the Grade class must also implement Serializable  public class Grade implements Serializable        your content

User · Answer

Need to change all arraylist to Serializable wif in bean class    public static class PremiumListBean  implements Serializable       private List lt AddOnValueBean gt  AddOnValue       public List lt AddOnValueBean gt  getAddOnValue             return AddOnValue              public void setAddOnValue List lt AddOnValueBean gt  AddOnValue            this AddOnValue   AddOnValue              public static class AddOnValueBean  implements Serializable            SerializedName  Premium           private String Premium           public String getPremium                 return Premium                     public void setPremium String Premium                this Premium   Premium

User · Answer

if you POJO contains any other model inside that should also implements Serializable

User · Answer

If you can t make DNode serializable a good solution would be to add  transient  to the variable   Example   public static transient DNode dNode   null    This will ignore the variable when using Intent putExtra

User · Answer

Caused by  java io NotSerializableException  com resources student list DSLL DNode   Your DSLL class appears to have a DNode static inner class  and DNode is not Serializable

User · Answer

The exception occurred due to the fact that any of the inner classes or other referenced classes didn t implement the serializable implementation  So make sure that all the referenced classes must implement the serializable implementation

User · Answer

For me this was resolved by making the variable withing the class transient    Code before    public class UserLocation implements Serializable      public Location lastKnownLocation     public UserLocation          code after  public class UserLocation implements Serializable       public transient Location lastKnownLocation      public UserLocation

User · Answer

In my case I had to implement MainActivity as Serializable too  Cause I needed to start a service from my MainActivity    public class MainActivity extends AppCompatActivity implements Serializable               musicCover   new MusicCover       A Serializable Object             sIntent   new Intent MainActivity this  MusicPlayerService class       sIntent setAction MusicPlayerService ACTION INITIALIZE COVER       sIntent putExtra MusicPlayerService EXTRA COVER  musicCover       startService sIntent

[android] Parcelable encountered IOException writing serializable object getactivity()

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